Swift-XRT Survey of Fermi Unassociated Sources


These results are part of the Swift program to follow-up Fermi unassociated sources in an attempt to find X-ray counterparts to the unidentified gamma-ray sources. As new observations are performed, these pages will be updated in nearly real time. Please use these results as a guide and proceed with caution when using them in a publication since they are the result of an automated analysis.

When using these data and results in publications, please reference M.C. Stroh & A.D. Falcone 2013, ApJS, 207, 28; arXiv: 1305.4949 for a description of many of the analysis techniques used to reduce these data (note: a more detailed paper describing the complete data set and analysis is forthcoming). Please contact Abe Falcone and Michael Stroh at unassociated@swift.psu.edu if you have any questions about the program or the analysis, or to simply to let us know that you've made use of these data.


Caution: For completeness, sources are listed if the "detection" exceeds 3 sigma. The significances and images are shown so you can make more stringent significance cuts, if desired.

1FGL J0908.7-2119

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J0908.7-2119 Swift-XRT detections in the field for 1FGL J0908.7-2119

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 09 08 58.60 -21 18 52.53 4.29 (3.0 ± 0.3) x 10-2 97 9.437 9.329
2 09 08 23.76 -21 11 38.40 5.17 (7 ± 2) x 10-3 29 4.838 4.556
3 09 09 07.95 -21 30 23.54 7.71 (3.9 ± 1.0) x 10-3 12 2.701 3.873
4 09 09 20.69 -21 19 03.80 6.52 (3.7 ± 1.1) x 10-3 13 3.295 3.287

Rejected Excesses (Due to Overlaps or SNR(Sosta) < 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 09 09 35.66 -21 13 54.61 7.48 (2.5 ± 0.9) x 10-3 10 2.567 2.747
2 09 08 43.49 -21 15 05.07 7.09 (3.0 ± 1.1) x 10-3 12 2.557 2.647
3 09 08 22.61 -21 27 11.35 5.89 (2.4 ± 1.0) x 10-3 14 2.678 2.401

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0908.7-2119 Swift-XRT image with known radio, optical and UV sources for 1FGL J0908.7-2119

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J090858.0-211902 09 08 58.01 -21 19 01.92 2.75 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
QORG J090858.6-211855 09 08 58.61 -21 18 55.08 2.91 QORGCAT
1 NVSS J090858-211854 09 08 58.70 -21 18 55.08 2.93 NVSS
2 NVSS J090847-212426 09 08 48.00 -21 24 25.92 5.05 NVSS
3 PPM 729216 09 08 55.85 -21 24 24.12 5.47 PPM
4 WDS J09085-2115 09 08 30.00 -21 15 00.00 5.81 WDS
5 PPM 255710 09 08 27.60 -21 15 02.88 6.16 PPM
BD-20 2800 09 08 27.60 -21 15 02.88 6.16 ACRS
SAO 177016 09 08 27.60 -21 15 01.80 6.18 SAO
6 NVSS J090816-212134 09 08 16.39 -21 21 33.84 7.29 NVSS
WISH B0906.4-2059 09 08 40.30 -21 11 52.08 7.67 WISH
MC1 0906-209 09 08 39.70 -21 11 53.16 7.68 DIXON
7 NVSS J090840-211149 09 08 40.20 -21 11 49.92 7.70 NVSS
TXS 0906-209 09 08 40.30 -21 11 48.12 7.73 TEXAS
VLSS J0908.6-2111 09 08 40.10 -21 11 48.12 7.74 VLSS
8 PMN J0908-2111 09 08 37.90 -21 11 35.16 8.06 PMN
9 NVSS J090925-211520 09 09 25.01 -21 15 20.16 9.89 NVSS
10 NVSS J090812-212601 09 08 12.70 -21 26 02.04 10.26 NVSS
WISH B0905.9-2114 09 08 12.60 -21 26 21.84 10.49 WISH
11 PPM 729203 09 08 15.89 -21 27 37.80 10.85 PPM
12 NVSS J090825-210801 09 08 25.39 -21 08 02.04 12.37 NVSS
13 SAO 177035 09 09 14.59 -21 30 57.24 13.29 SAO
BD-20 2804 09 09 14.64 -21 30 57.24 13.30 ACRS
PPM 255733 09 09 14.66 -21 30 57.24 13.30 PPM
14 NVSS J090917-210725 09 09 17.50 -21 07 24.96 14.01 NVSS

Penn State University Goddard Space Flight Center Swift